137556213 has 8 divisors (see below), whose sum is σ = 183625728. Its totient is φ = 91595424.

The previous prime is 137556203. The next prime is 137556217. The reversal of 137556213 is 312655731.

137556213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137556213 - 2²¹ = 135459061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137556217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24181 + ... + 29322.

It is an arithmetic number, because the mean of its divisors is an integer number (22953216).

Almost surely, 2^137556213 is an apocalyptic number.

It is an amenable number.

137556213 is a deficient number, since it is larger than the sum of its proper divisors (46069515).

137556213 is an equidigital number, since it uses as much as digits as its factorization.

137556213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54363.

The product of its digits is 18900, while the sum is 33.

The square root of 137556213 is about 11728.4360850030. The cubic root of 137556213 is about 516.2103845843.

The spelling of 137556213 in words is "one hundred thirty-seven million, five hundred fifty-six thousand, two hundred thirteen".